{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76653", "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "state": "PUBLISHED", "assignerShortName": "TPLink", "dateReserved": "2026-08-19T15:49:30.548Z", "datePublished": "2026-09-10T20:12:43.207Z", "dateUpdated": "2026-09-10T20:27:18.091Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "shortName": "TPLink", "dateUpdated": "2026-09-10T20:12:43.207Z"}, "title": "Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-126", "description": "CWE-126", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-126", "descriptions": [{"lang": "en", "value": "CAPEC-126 Path Traversal"}]}], "affected": [{"vendor": "TP-Link Systems Inc.", "product": "TL-MR6400 v8", "platforms": ["Linux"], "versions": [{"status": "affected", "version": "0", "lessThan": "1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "Archer MR600", "platforms": ["Linux"], "versions": [{"status": "affected", "version": "v3", "lessThan": "MR600(EU)_V3_1.4.0 Build 260827", "versionType": "custom"}, {"status": "affected", "version": "v2", "lessThan": "MR600(EU)_V2_1.12.0 Build 2600826", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified\u00a0in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8\u00a0due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p><span>A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified&nbsp;</span><span>in Archer MR600 (v2, v3 &amp; v5) and TL-MR6400 v8</span><span>&nbsp;</span><span>due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.</span></p><p>\n\n</p><p>Successful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.</p>"}]}], "references": [{"url": "https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware", "tags": ["patch"]}, {"url": "https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware", "tags": ["patch"]}, {"url": "https://www.tp-link.com/us/support/faq/5292/", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-10T20:27:12.333163Z", "id": "CVE-2026-76653", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-10T20:27:18.091Z"}}]}}

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